Dual mode switched parasitic antenna for on/off body communication channels

Author(s)
Varnoosfaderani, Mohammad Vatankhah
Thiel, David V
Lu, Junwei
Kanesan, Manimaran
Griffith University Author(s)
Year published
2014
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Abstract
A dual mode, hexagonal patch, switched parasitic array is presented for off-body and on-body communications at the same time. The position of the feed excites two modes (TM11 and TM01) and the antenna resonates at 2.4 and 5 GHz simultaneously. When positioned on the chest, the parasitic elements create a controlled narrow beam off axis and a broad beam on axis simultaneously. The off-axis beam (2.4 GHz) can be used for over body communication while the 5 GHz pattern is suitable for off-body communications link to a data center or wireless receiver.
Conference Title
2014 INTERNATIONAL WORKSHOP ON ANTENNA TECHNOLOGY: "SMALL ANTENNAS, NOVEL EM STRUCTURES AND MATERIALS, AND APPLICATIONS" (IWAT)
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Subject
Antennas and propagation
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